Desk-calendar.



F. RI EDERF DESK CALENDAR.

APPLICATION FILED JULY L6, IQIZF'RENEWED MAR. 13, 1917 I 1,245,384. Patented Nov. 6 1917.

FRANK RIEDER, OF NEW YORK, N. Y.

DESK-CALENDAR.

Specification of Letters Patent.

Application filed July 16, 1912, Serial No. 709,703. Renewed March 13, 1917. Serial No. 15 1,5605.

To all whom it may concern:

Be it known that I, FRANK RiEoEn, a subject of the Emperor of Austria, residing at Bronx, New York city, in the county of New York and State of New York, have invented new and useful Improvements in Desk-Calendars, of which the following is a specification.

The general object of the invention is to improve the construction of the operating mechanism of desk calendars so as to admit of the easy changing of the parts bear1ng the characters representing the days, dates and months of the year and to prevent the disturbing of the alinement of the indicating parts after these have been ad usted as desired.

Other objects will appear and be better understood from that embodiment of my invention of which the following is a specification, reference being had to the accompanying drawings forming a part hereof, in which Figure l is a perspective of the device ap plied to a stationary holder.

Fig. 2 is an enlarged, vertical cross section of Fig. 1. r V I Fig. 3 is a detail front elevation of a portion of the device with parts removed.

Fig. 4 is a detail perspective of the operating button.

Fig. 5 is a detail perspective of one of the rotating elements.

Fig. 6 is a fragmentary perspective of one of the endless elements. v

The support with which my invention is to be associated, may be of any approved or desired construction such as the box or receptacle 5. The front wall of this receptacle is hollow and made to receive the mechanism forming the subject matter of the present invention. The endless belts upon which are printed the names of the days of the week and the months of the year and dates of the month, are three in number and are formed of textile or other suitable flexible material. A section of one of such belts is shown in Fig. 6 and indicated by 6 and in this connection the belt consists of a layer of textile material with a layer of relatively stifl paper superimposed upon and glued to one face of the strip of textile material and scored transversely at predetermined intervals, as indicated at 7. The characters making up the names of the days, months,

or dates, are printed in the spaces between 1212 in the hollow front wall of the re-- ccptacle 5. The upper block 9 is bypref erence positioned directly behind one of the openings 8 and arranged in such spaced relation to the lower block 10 as to maintain the belt through which it and the lower block passes, relatively taut; and the names.

of the days are so arranged on the belt as to admit of the belt making a complete cycle before the same name is visible through its respective. opening in the front face of the wall of the receptacle. The portions between the scorings in each width to the faces of the blocks over which the said belts are trained, so that a quarter turn of the blocks supporting any belt is all that is necessary to have any name or date succeeding that which is visible through the opening in the front face of the front wall of the receptacle, appear through said opening.

Since the belt upon which is printed the dates of the month and which is indicated by 13 in Fig. 2, must of necessity be longer than the adjacent belt for the days of the week owing to the greater number of leg ends appearing thereon, I find it convenientwhen using the device in connection with a. receptacle such as is shown in Figs. 1 to 3 inclusive, to form a transverse recess 14 in the bottom of the box and train the lower end of the belt over a non-cylindrical block l5 which has trunnions, one of which is shown in Fig. 2 and indicated by 16, journaled in the sides of the said recess. And in this connection I further find it desirable to train the middle portion of the belt over rolls 17-17 at the front end of the recess.

It will be'understood that the upper block for the belt 13 is arranged and supported similarly to the block 9 as shown in Fig. 3; so too, are the upper and lower blocks for the months belt arranged like the blocks 9 and 10 except that the blocks for the months belt are spaced apart for a distance greater than are the blocks 9 and 10, for an obvious reason.

Patented Nov. 6, 191 '7.

belt, correspond in- The operating mechanism for the belts consists of a series of buttons or push rods 18 slidingly fitted in openings in the upper edge of the hollow front wall of the receptacle 5, as shown in Fig. 1. Each of the push rods 18 is hollow and receives a coil spring 19 which surrounds a stud 20 supported by ashelf 21 extending longitudinally of and arranged in the hollow front wall and above the upper blocks. Each'push rod also carries a laterally extending pin 22 which extends through a curved guide slot 23 in the adjacent vertical strip 1:2- and a depending pawl 24: carried by each push rod, passes through an opening made to receive it in the shelf 21 and at its lower end portion has a. detent arranged to interlock with that tooth of the ratchet 26 with which it abuts when the rod is pushed downwardly. The ratchets 26 maybe of any preferred construction as shown in Fig. 5, and are suitably attached to one end of the upper blocks as shown in Figs. 2-, 3 and 5.

The length of the downward stroke of the push rods 18 is such as to admit of their turning the upper blocks fora quarter revolution for the purpose previously stated, and during such downward movement the pawl 24: of each block engages va leaf spring Lies shown in Fig. 2, whereby the detent is held toward the ratchet. When released each push rod, is restored to its normal position by its coil spring 19 and this return movement is accelerated by the tension of the spring 27. It will be seen, however, that when the push rod moves to its elevated position, there will be little tendency of the upper block to turn.

Although Ihave shown and described one embodiment of my invention it is to be understood that I am not to be limited to the specific construction and arrangement of parts herein shown and described, since various changes may be made within the scope of the appended claim, without departing from the spirit or sacrificing any of the advantages of the invention.

lVhat is claimed as new is:

A device of the character described co1nprising a body, a member journaled upon the b0dy,- an endless belt trained around said member, ratchets carried at one end of said member, said body having at one end of the journaled -member a curved guide slot the convexed edge of which is disposed toward the axis of the journaled member, a spring pressed push button mounted on the body and having a pin which is slidably received in the said slot, said push button also having a pawl provided with a detent which is disposed toward and adapted to engage with said ratchets and a spring mounted upon the body and bearing against the pawl to hold the detent thereof toward said ratchets in'a position to engage therewith.

In testimony whereof I afliX my signature in presence of two witnesses.

FRANK RIEDER.

Copies of this patent may be obtained for five cents each, .byaddressing'the Commissioner of Tatents,

Washington, 1). O. r 

